4-(3-chloro-4-(pyridin-2-ylmethoxy)phenylamine)-8-dimethylaminomethylene-5,8-dihydro-6H-benzo[4,5]thieno[2,3-d]pyrimidine-7-one 、 2-tert-butyldimethylsilyloxy-1-tert-butyloxycarbonyl-ethylhydrazine 以
乙醇 为溶剂,
反应 58.0h,
以72%的产率得到2-(2-{[tert-butyl(dimethyl)silyl]oxy}ethyl)-N-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-4,5-dihydro-2H-pyrimido[5',4':4,5]thieno[2,3-e]indazol-6-amine